Kuchisake-onna: The Slit-Mouthed Woman Who Panicked 1979 Japan

A woman in a cloth face mask turns up in Studio Ghibli’s Pom Poko (1994), in the 2007 horror film Carved, and, decades later, in the video game Ghostwire: Tokyo. In every version the routine is the same: she stops someone and asks whether she is pretty. Before any of that, in December 1978, she was simply a rumour passing between children in Gifu Prefecture, and within months newspapers were printing her.

Quick facts

• Verdict: Not a documented incident and not an old temple-record monster — Kuchisake-onna is a school-born urban legend that started as word-of-mouth rumour in Gifu Prefecture in late 1978 and was amplified into a national story by newspapers and magazines.
• Name: Kuchisake-onna (口裂け女), literally “slit-mouthed woman.”
• Type: Modern urban legend, spread through school oral culture and the press rather than online.
• Earliest confirmed record: 26 January 1979, in the Gifu Nichinichi Shimbun.
• Where it spread: From Gifu Prefecture across almost the whole country by June 1979.

What the story says

A young woman stands on a street, her mouth completely hidden behind a mask. She asks a passer-by whether she is pretty. If the answer is yes, she pulls the mask away to show a mouth split open as far as her ears and asks again; if the answer is no, she attacks with a knife or a pair of scissors. That question-and-answer structure — a query, a response, a reaction keyed to the response — is the fixed skeleton of the legend, and everything else moves around it.

The details of her appearance drift from telling to telling. The English-language description gives her long black hair, pale skin and white hands, a height of roughly 175 to 180 centimetres in most accounts and 243.84 centimetres in one outlier, and a blade carried out of sight. Japanese accounts record regional wardrobes: in some places she wears red clothing with a beret and high heels, in others a kimono and sunglasses. Countermeasures circulated alongside her. Children traded the idea that bekko candy, a hard amber sweet, or the word for hair pomade would make her falter long enough to get away — small, oddly domestic pieces of defensive lore attached to an otherwise open-ended threat.

Earliest confirmed record

The Japanese Wikipedia article places the start of the rumour in Gifu Prefecture in early December 1978 and gives its first appearance in the mass media as a report in the Gifu Nichinichi Shimbun on 26 January 1979. That newspaper date is the earliest fixed point anyone can put a finger on. The month in which the rumour itself began is recorded, but not the exact day, and the gap between the first playground retelling and the first printed one is not documented in these sources, so there is no way to say who told it first or where exactly they were standing.

The English Wikipedia article agrees on the broad shape: the modern story originates in 1978, and Gifu Prefecture is named as the place it came from. Anything earlier than that belongs to the origin theories discussed below, not to the record.

What is documented

What can be stated with confidence is the scale and the speed. Press coverage turned a local rumour into a nationwide alarm: newspapers and magazines carried the story, panic followed, and children started walking to school in groups rather than alone. That last detail is the most concrete trace the legend left on ordinary life — an adjustment in daily routine, made by families reacting to something that had never been verified.

The spread is also documented in outline. From Gifu the story reached nearly the whole country by June 1979, and the Japanese account records it dying away quickly once the summer holidays began in August. The mechanism is worth noting: this is a pre-internet legend, carried by schoolchildren talking to each other and by reporters writing it up, which is why the school calendar shows up in its life cycle at all.

The candy motif left a small documented footprint of its own. The PC game Heiankyo Alien adopted candy as an item for driving off enemies, taking a piece of playground defensive lore and turning it into a game mechanic.

What is contested

Almost everything about where she came from. The sources list explanations rather than settling on one. Japanese accounts include a vengeful spirit connected to a victim of the Gujo uprising, a supposed true incident in the Meiji era, a person who had escaped confinement, a cosmetic surgery that went wrong, and the ghost of a bus that went into the Hida River. English-language accounts add an attack by a jealous woman and a dental procedure that went wrong, and note a Western retelling in which a samurai’s unfaithful wife or mistress had her mouth cut as retaliation. None of these is presented as the established source of the 1978 rumour. They are better read as explanations invented after the fact, each one reverse-engineering a backstory for a figure who arrived without one.

The timing of the peak is also described differently depending on where you look. The English article says the story became popular in the summer of 1979; the Japanese article has it already nationwide by June and fading fast from August. Her physical description is inconsistent in the same way, with the 243.84-centimetre figure sitting far outside the ordinary range the same source gives.

Adaptations

The entry points most readers outside Japan meet first are all fiction, and all much later than the rumour. Studio Ghibli’s animated film Pom Poko (1994) features her; the live-action horror film Carved (2007) and Kuchisake-onna Returns (2012) both build on her; and the video game Ghostwire: Tokyo includes her among its figures. None of these is evidence about the 1978 events — they are how a schoolyard rumour became a durable character. The trail runs the other way round from what the films suggest: the panic came first, the adaptations followed.

How it is discussed in Japan today

Ocsoku, a Japanese occult blog, has covered Kuchisake-onna in five posts published between 2013 and 2020.